The term negative chemotaxis is identified in base64 scheme by the sequence bmVnYXRpdmUgY2hlbW90YXhpcw==, while the MD5 signature is equal to 03d0ffb39395d61ab4b9261dc617edea. The ASCII encoding of negative chemotaxis in hexadecimal notation is 6e65676174697665206368656d6f7461786973.